/usr/lib/ruby/vendor_ruby/merb-core/rack/middleware/profiler.rb is in ruby-merb-core 1.1.3+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | begin
require "ruby-prof"
rescue LoadError => e
Merb.fatal! "You need ruby-prof installed to use the profiler middleware", e
end
module Merb
module Rack
class Profiler < Merb::Rack::Middleware
# :api: private
def initialize(app, types = [RubyProf::ALLOCATIONS, RubyProf::PROCESS_TIME])
super(app)
@types = types
end
# :api: plugin
def call(env)
measure_names = { RubyProf::ALLOCATIONS => 'allocations',
RubyProf::PROCESS_TIME => 'time', RubyProf::MEMORY => "memory" }
ret = nil
GC.disable
@types.each do |type|
next if type.nil?
if GC.respond_to?(:enable_stats)
GC.enable_stats || GC.clear_stats
end
RubyProf.measure_mode = type
RubyProf.start
100.times do
ret = super
end
result = RubyProf.stop
printer = RubyProf::CallTreePrinter.new(result)
path = "merb_profile_results" / env["PATH_INFO"]
FileUtils.mkdir_p(path)
printer.print(
File.open(
"#{path}/callgrind.out.#{measure_names[RubyProf::measure_mode]}",
'w'))
GC.disable_stats if GC.respond_to?(:disable_stats)
end
GC.enable
ret
end
end
end
end
|